Assertion : Alkyl isocyanides in acidified water give alkyl formamides.
Reason : In isocyanides, carbon first act as a nucleophile and then as electrophile.

Options

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If the assertion and reason both are false.

Answer

A

Explanation

In an isocyanide, first an electrophile and then a nucleophile add at the carbon to form a species which usually undergoes further transformations
`R overset(+)(N) -= overset(-)(C) + E^(+) rarr R overset(+)(N) -= CE overset(Nu)rarr RN -= C (Nu)E`
`R overset(+)(N) -= overset(-)(C) + H_(2)O rarr RN = CHOH rarr underset("Alkyl formamide")(RNHCHO)`